<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
</head>
<body>
    
    <!-- 
        v-for指令
            1.用于展示列表数据
            2.语法: v-for="(item, index) in xxx" :key="yyy"
            3.可遍历: 数组，对象，字符串(用的少)，指定次数(用的少)
     -->

    <div id="root">
        <h2>人员列表</h2>
        <!-- 遍历数组 -->
        <ul>
            <li v-for="(p, index) in persons" :key="p.id">
                {{p.name}}-{{p.age}}
            </li>
        </ul>

        <!-- 遍历对象 -->
        <h2>汽车信息</h2>
        <ul>
            <li v-for="(val, k) in car" :key="k">
                {{k}}-{{val}}
            </li>
        </ul>

        <!-- 遍历字符串 -->
        <h2>测试遍历字符串</h2>
        <ul>
            <li v-for="(char, index) in str" :key="index">
                {{char}}-{{index}}
            </li>
        </ul>


        <!-- 遍历指定次数 -->
        <h2>遍历指定次数</h2>
        <ul>
            <li v-for="(number, index) in 5" :key=""index>
                {{index}}-{{number}}
            </li>
        </ul>

    </div>

    <script>

        new Vue({
            el: '#root',
            data: {
                str: 'hello',
                persons: [
                    {
                        id: '1',
                        name: '张三1',
                        age: 19
                    },
                    {
                        id: '2',
                        name: '张三2',
                        age: 191
                    },
                    {
                        id: '3',
                        name: '张三3',
                        age: 193
                    }
                ],
                car: {
                    name: '奥迪A8',
                    price: '70万',
                    color: '黑色'
                }
            }
        })

    </script>

</body>
</html>